Airway Exam I Questions and Answers
A pt. on a volume cycled ventilator is having a bronchospasm, what happens to Tidal Volume? PIP? -
Answer-Vt - no change, Pip increases
A pt. on pressure control as a ventilation mode has an increase in amount of lung secretions, what
happens to Vt? - Answer-Vt decreases, PIP stays the same
A patient arrives in PACU from the OR intubated after surgery. The pt. has no respiratory effort due to
residual MR. What mode of ventilation would be appropriate for immediate post op ventilation? -
Answer-ACV
All of the following parameters will be set by the anesthesia care provider for PCV except?
FIO2
VT
PIP
frequency - Answer-Vt
Negative ventilation is an outdated version of ventilation. What was the name of the device used to
ventilate patients with polio? - Answer-The iron lung
, CPAP is a type of what ventilation? - Answer-Noninvasive positive ventilation
How does a positive pressure ventilator work? - Answer-A positive pressure ventilator uses pressures
above atmospheric pressure to push air into the lungs (high to low)
Failure of diffusion at the alveolar-capillary membrane causes increased or decreased arterial oxygen
tension? - Answer-Decreased
T/F Relative hypoventilation causes
an increase in arterial carbon dioxide tension - Answer-True
When it comes to mechanical ventilation, what must you caution with with patients suffering from an
obstructive lung dz (CBABE)? Why? - Answer-RR
If you increase respiratory drive/RR too much, this can lead to inspiratory muscle fatigue and then
possibly acute respiratory failure
When selecting a proper RR for your patient, you must titrate what to your desired goals? - Answer-pH
and CO2
T/F Plateau pressure is defined as the pressure applied to the small airways and alveoli by the ventilator
- Answer-True
When do you measure plateau pressure? - Answer-Measured at end inspiration w/ inspiratory hold
T/F Modern ventilators have flow rates between 50-100 L/min - Answer-False (60-120 L/min)
If the flow rate is set too low, what may this cause? - Answer-dyspnea, patient-ventilator asynchrony
(when the timing of the ventilator cycle is not simultaneous with the timing of the patient's respiratory
cycle), and increased work of breathing
A pt. on a volume cycled ventilator is having a bronchospasm, what happens to Tidal Volume? PIP? -
Answer-Vt - no change, Pip increases
A pt. on pressure control as a ventilation mode has an increase in amount of lung secretions, what
happens to Vt? - Answer-Vt decreases, PIP stays the same
A patient arrives in PACU from the OR intubated after surgery. The pt. has no respiratory effort due to
residual MR. What mode of ventilation would be appropriate for immediate post op ventilation? -
Answer-ACV
All of the following parameters will be set by the anesthesia care provider for PCV except?
FIO2
VT
PIP
frequency - Answer-Vt
Negative ventilation is an outdated version of ventilation. What was the name of the device used to
ventilate patients with polio? - Answer-The iron lung
, CPAP is a type of what ventilation? - Answer-Noninvasive positive ventilation
How does a positive pressure ventilator work? - Answer-A positive pressure ventilator uses pressures
above atmospheric pressure to push air into the lungs (high to low)
Failure of diffusion at the alveolar-capillary membrane causes increased or decreased arterial oxygen
tension? - Answer-Decreased
T/F Relative hypoventilation causes
an increase in arterial carbon dioxide tension - Answer-True
When it comes to mechanical ventilation, what must you caution with with patients suffering from an
obstructive lung dz (CBABE)? Why? - Answer-RR
If you increase respiratory drive/RR too much, this can lead to inspiratory muscle fatigue and then
possibly acute respiratory failure
When selecting a proper RR for your patient, you must titrate what to your desired goals? - Answer-pH
and CO2
T/F Plateau pressure is defined as the pressure applied to the small airways and alveoli by the ventilator
- Answer-True
When do you measure plateau pressure? - Answer-Measured at end inspiration w/ inspiratory hold
T/F Modern ventilators have flow rates between 50-100 L/min - Answer-False (60-120 L/min)
If the flow rate is set too low, what may this cause? - Answer-dyspnea, patient-ventilator asynchrony
(when the timing of the ventilator cycle is not simultaneous with the timing of the patient's respiratory
cycle), and increased work of breathing
